Rear Tires Suddenly Lock Up Going 65

I'm a little confused on what you mean..

I may have applied brake pressure after the "lack of power" feeling but I'm unsure. This may have really locked up the brakes and after the tires locked up I for sure applied the brakes and controlled the car to a stop. I don't have power brakes, or power steering so it was a rather terrifying experience.

I've never replaced any brake hoses. I'm a new owner to this duster, I bought it about 6 months ago. Had a cam go flat and I rebuilt the carb, added msd ignition and wires, interior work, etc etc. I've put maybe 1000 miles on it..if that.

Other people have agreed that it may be a brake problem so I wan't to cover everything and find the problem before I take it on a drive.

Will update and add pictures as I tear into it.

When you raise the rear of the vehicle and look at the back of the axle, like you looking to the front of vehicle.....You will see where the two metal lines for the rear brakes going to a rubber hose with a brass end to it......I kno/heard of people having the front brake hose collapse an lock up the wheel.....When they get it stopped, after a few minutes they can usually drive it until it happens again....Now with the rubber hose for the rear brakes, if it collapse then both rear wheels will lock, because it's the only way for the fluid to pass to rear brakes.....